* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

.container {
  width: 100%;
  outline: 1px solid red;
}
.container .itemdiv {
}
.container .itemdiv img {
  display: block;
  object-fit: fill;
  width: 100%;
  margin-top: 10
  ;
}
